Keto Recipes

Keto Cheeseburger Casserole

This substantial, hearty, and quick 30-minute Keto Cheeseburger Casserole is a fantastic low-carb substitute for a traditional cheeseburger.

I enjoy casseroles a lot. These are simply VERY SIMPLE. Dinner is ready in 30 to 60 minutes after you put a few ingredients in a baking dish and put it in the oven!

This casserole is quite tasty in a pleasantly unfancy way. Both adults and children always like it. You can prepare it exactly as specified, change the spices you use, and use vegetables.

It is a highly forgiving and adaptable dish, like most casseroles. For more detailed advice, see below.


This keto cheeseburger casserole is easy to create and just calls for a few basic ingredients.

  • Cooking oil: olive oil! That tastes amazing. Ghee and avocado oil are additional alternatives.
  • Extra-lean ground beef: Because I have to drain the rendered fat in this recipe, I like to use leaner beef.
  • Garlic with onion. On occasion, when I’m particularly lazy, I’ll use onion and garlic powders, but it doesn’t taste the same. So I try not to be slack.
  • Black pepper and kosher salt: Cut the amount of kosher salt you use in half if you’re using fine salt instead.
  • I favor mayonnaise that is made with avocado oil. The name “Sir Kensington’s” is reputable.
  • Ketchup without added sugar is available at Whole Foods and on Amazon.
  • Dijon mustard is generally my favorite. Compared to yellow mustard, it is creamier and less sour. Yet, in this specific recipe, yellow mustard also functions.
  • Cheddar that has been shredded: I prefer using sharp or extra-sharp cheddar. It significantly improves this dish’s flavor.


This casserole of keto cheeseburgers is very simple to make! The recipe card below has thorough directions. An outline of the steps is given below:

  1. To begin, fry the ground beef and onion in the olive oil.
  2. As seasonings mix garlic, salt, and black pepper.
  3. Next, off the heat, you whisk in the shredded cheese, mayo, ketchup, and mustard.
  4. The final step is to move the mixture onto a prepared baking dish and top it with more cheese.
  5. Serve after baking at 400°F for approximately 15 minutes.

Expert Advice

You can cook the chicken, onion, and 1-2 cups of uncooked riced cauliflower with the other ingredients to make this casserole a full meal. If you do, you might want to use a bit more olive oil.

Keto Cheeseburger Casserole

Keto Cheeseburger Casserole

This substantial, hearty, and quick 30-minute Keto Cheeseburger Casserole is a fantastic low-carb substitute for a traditional cheeseburger.
Prep Time 15 minutes
Cook Time 15 minutes
Course Main Course
Cuisine American
Servings 6
Calories 458 kcal


  • Baking dish(olive oil spray)
  • Olive oil, two tablespoons
  • Extra lean ground beef, 2 lbs.
  • 1 medium onion, diced finely (6 oz)
  • ONE tsp. fine salt/two tsp. of kosher salt(Diamond Crystal)
  • Black pepper, 1/4 teaspoon
  • 1 tablespoon freshly minced garlic
  • Avocado oil, 1/4 cup mayonnaise
  • 1/4 cup plain ketchup
  • a teaspoon of mustard
  • split one and a half cups of strong cheddar (6 oz)


  • Set the oven to 400 degrees Fahrenheit. Spray some olive oil in a 2-quart baking dish.
  • For about 2 minutes, heat the olive oil in a sizable skillet over medium-high heat. Add the onions and the meat.
  • Sauté for approximately 5 minutes, breaking up the steak as you stir, until the beef is browned and the onion is tender.
  • Carefully drain the mixture and put it back in the skillet if there are liquids at the bottom.
  • Add the garlic, black pepper, and kosher salt by stirring. Cook for another minute while stirring.
  • Turn off the heat. Add the mustard, unsweetened ketchup, mayonnaise, and 1 cup of finely grated cheddar.
  • Place the prepared baking dish on top of the mixture. Add some of the leftover cheese.
  • FIFTEEN mins should be enough time to heat. Instead, if your baking dish is broiler-safe, broil the casserole 6 inches below the heat source (not directly below) for 1-2 minutes, or until the cheese has melted.



458 kcal in calories, 4 g of carbs, 38 g of protein, 31 g of fat, 7 g of saturated fat, 771 mcg of sodium, and 2 g of sugar.
Keyword Keto Cheeseburger Casserole
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